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CVE-2024-21658— Insufficient control of region value length in discourse-calendar

Quick assessment

Affected
discourse discourse-calendar
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Discourse Calendar是Discourse开源的一个日历插件。 Discourse Calendar 存在资源管理错误漏洞，该漏洞源于对数据长度的限制过于宽松，可能导致带宽和磁盘空间的异常占用。

CVSS 4.3 · Medium EPSS 0.36% · P30
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I. Basic Information for CVE-2024-21658

Vulnerability Information
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Vulnerability Title
Insufficient control of region value length in discourse-calendar
Source: CVE Program / CVE List V5
Vulnerability Description
discourse-calendar is a discourse plugin which adds the ability to create a dynamic calendar in the first post of a topic. The limit on region value length is too generous. This allows a malicious actor to cause a Discourse instance to use excessive bandwidth and disk space. This issue has been patched in main the main branch. There are no workarounds for this vulnerability. Please upgrade as soon as possible.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Discourse Calendar 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse Calendar是Discourse开源的一个日历插件。 Discourse Calendar 存在资源管理错误漏洞，该漏洞源于对数据长度的限制过于宽松，可能导致带宽和磁盘空间的异常占用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
discourse discourse-calendar < 66259cd21dc6a1b2139d9833f3f847d8013e6759 -

II. Public POCs for CVE-2024-21658

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III. Intelligence Information for CVE-2024-21658

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IV. Related Vulnerabilities

Same product: discourse-calendar
Same vendor: discourse
Same weakness: CWE-400